7 octubre, Valencia
Lugar: ITEAM Research Institute Meeting Room, Edificio G, Acceso D, 4 piso, Universitat Politécnica de Valencia
Hora: 11 a.m.
Ponente: Dr. David Marpaung, CUDOS, University of Sydney.
Stimulated Brillouin scattering (SBS), whereby light interacts coherently with acoustic phonons is a powerful and flexible mechanism for the control of light. Until recently, this effect was limited to a long length of optical fiber. Recent advances in nanofabrication have opened new possibilities for harnessing Brillouin interaction in nanoscale optical circuits. In this talk, I will review the principles of Brillouin scattering and discuss the ways to harness SBS in a photonic chip. I will then present our recent results that reveal Brillouin scattering in chip scale devices and highlight emerging applications of this exciting new technology, including demonstrations of tunable microwave filters and phase shifters as well as novel on-chip Brillouin laser and frequency comb.
David Marpaung received his Ph.D. degree in electrical engineering from the University of Twente, the Netherlands in 2009. From 2009 to 2012 he was a postdoctoral researcher in the University of Twente within the framework of the European Commission FP7 funded project SANDRA, working on microwave photonic system integration for optical beamforming. He joined CUDOS University of Sydney, Australia in August 2012 as a research fellow. He is now leading the nonlinear integrated microwave photonics research activities in CUDOS University of Sydney. He has authored or co-authored 24 refereed journal publications and more than 50 conference papers, and delivered 10 invited talks in various international conferences. He is a reviewer for several journals including Science, Optica, Scientific Reports, Optics Express, and Optics Letters. His research interests include RF photonics, photonic integration, nonlinear optics, and phononics.